Preheat the oven to 300 F.
Meanwhile, prepare an 8 by 4-inch loaf pan.
In a medium bowl, whisk together the flour, baking soda, ginger, and cinnamon.
Warm the cream. Set aside.
In a small pot warm the butter, molasses, and brown sugar until liquid. Stir. Cool slightly.
In a small bowl, whisk together the eggs and cream. Add to the molasses mixture. Whisk again.
Stir in the dry ingredients until just combined.
Pour Gingerbread Cake batter into the prepared pan.
Bake for 1 hour and 15 minutes to 1 hour and 20 minutes.hour and
Remove from the oven and cool slightly. Unmold onto a wire rack.
Let the gingerbread Cake cool completely before slicing it with a bread knife and serving.